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Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

Dirt Bike Air & Fuel Systems at JJ Motorsports

Optimize your bike’s performance with high-quality air and fuel components from JJ Motorsports. Browse air filters, carburetors, and fuel system parts engineered to deliver clean airflow and a consistent fuel mix for peak efficiency. Ensure your bike runs smoothly by pairing these with other essential off-road dirt bike accessories.

Shop trusted brands like Motion Pro for cables and Uni Filter for high-flow filters. Explore related categories such as Dirt Bike Engine Parts for rebuilds or Dirt Bike Exhaust for complete tuning.

Top Dirt Bike Air & Fuel Products

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • NO TOIL Air Filter - CRF250/450 1246

    NO TOIL Air Filter - CRF250/450 1246

    NO TOIL

    $33.95
    A quality air filter is foundational to your CRF's performance—restrictive stock filters rob horsepower and throttle response. NO TOIL's foam construction delivers superior airflow while maintaining reliable filtration, giving you the power gains and...
    10110541
    SKU:
    10110541
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    BASE COLOR:
    GREEN
    FILTER MEDIA MATERIAL:
    FOAM
    PRODUCT NAME:
    PRE-OILED AIR FILTER
    TYPE:
    STANDARD
    COLOR/FINISH:
    GREEN
    UNITS:
    EACH
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    OFF-ROAD
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • NO TOIL Pre-Oiled Air Filter 1851

    NO TOIL Pre-Oiled Air Filter 1851

    NO TOIL

    $33.95
    A quality air filter directly impacts engine efficiency and power output—this is where NO TOIL's Pre-Oiled Air Filter 1851 delivers measurable gains. The pre-oiled foam construction flows more air to your engine while maintaining superior filtration,...
    10113140
    SKU:
    10113140
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    BASE COLOR:
    GREEN
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    PRE-OILED AIR FILTER
    COLOR/FINISH:
    GREEN
    FILTER MEDIA MATERIAL:
    FOAM
    TYPE:
    STANDARD
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • NO TOIL Air Filter 120-53

    NO TOIL Air Filter 120-53

    NO TOIL

    $30.95
    A quality air filter is foundational to engine performance and longevity—cheap filtration leads to contamination, reduced airflow, and costly damage. The NO TOIL 120-53 delivers superior protection across all riding conditions with dual-layer...
    10114503
    SKU:
    10114503
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    COLOR/FINISH:
    YELLOW
    FILTER MEDIA STYLE:
    DUAL-LAYER
    STYLE:
    FLAME LAMINATED
    UNITS:
    EACH
    COLOR/FINISH:
    OFF-WHITE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    DUAL-STAGE
    BASE COLOR:
    OFF-WHITE
    FILTER MEDIA MATERIAL:
    FOAM
    PRODUCT NAME:
    AIR FILTER
    $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    $30.95
    Subtotal:
  • NO TOIL Pre-Oiled Air Filter 1253

    NO TOIL Pre-Oiled Air Filter 1253

    NO TOIL

    $33.95
    A quality air filter is foundational to engine performance—it directly impacts horsepower, throttle response, and engine longevity. The NO TOIL Pre-Oiled Air Filter 1253 delivers superior airflow while maintaining excellent filtration, giving you the...
    10114504
    SKU:
    10114504
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    COLOR/FINISH:
    GREEN
    FILTER MEDIA MATERIAL:
    FOAM
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    PRE-OILED AIR FILTER
    TYPE:
    STANDARD
    BASE COLOR:
    GREEN
    FILTER MEDIA STYLE:
    DUAL-LAYER
    UNITS:
    EACH
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • DEVOL Radiator Guards - Kawasaki 0101-2101

    DEVOL Radiator Guards - Kawasaki 0101-2101

    DEVOL

    $119.95
    Radiator damage is one of the costliest failures on the track or trail, and a single impact can end your day. The DEVOL Radiator Guard provides comprehensive protection without compromising cooling efficiency—its cage design and strategic airflow...
    19010047
    SKU:
    19010047
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    BASE FINISH:
    RAW
    COLOR/FINISH:
    BRUSHED ALUMINUM
    PRODUCT NAME:
    RADIATOR GUARD
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • DEVOL Radiator Guards - KTM 0101-3101

    DEVOL Radiator Guards - KTM 0101-3101

    DEVOL

    $119.95
    Radiator damage is one of the quickest ways to sideline your KTM, and stock plastic shrouds won't cut it in aggressive riding conditions. The DEVOL Radiator Guards deliver frame-mounted protection that shields your cooling system from impacts, debris,...
    19010049
    SKU:
    19010049
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE FINISH:
    RAW
    UNITS:
    PAIR
    COLOR/FINISH:
    BRUSHED ALUMINUM
    MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    RADIATOR GUARD
    $119.95
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • DEVOL Radiator Guards - Yamaha 0101-5504

    DEVOL Radiator Guards - Yamaha 0101-5504

    DEVOL

    $119.95
    A damaged or compromised radiator can leave you stranded, and aftermarket guards often choke airflow and trap heat. The DEVOL Radiator Guard delivers full-perimeter protection without sacrificing the cooling performance your machine demands—the strategic...
    19010064
    SKU:
    19010064
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    COLOR/FINISH:
    BRUSHED ALUMINUM
    MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    RADIATOR GUARD
    RIDING STYLE:
    OFF-ROAD
    BASE FINISH:
    RAW
    UNITS:
    PAIR
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • BOYESEN Single-Stage Reed - Carbon - CR500 '89-'01 SSC003

    BOYESEN Single-Stage Reed - Carbon - CR500 '89-'01 SSC003

    BOYESEN

    $50.95
    Stock reeds limit your CR500's potential across the entire RPM band—unreliable power delivery and premature wear are the cost of settling for OEM components. The Boyesen single-stage carbon reed delivers consistent scavenging efficiency and measurable...
    SSC003
    SKU:
    SSC003
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MATERIAL:
    CARBON
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    REED PETAL
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $50.95
    Qty in Cart: 0
    Quantity:
    Price:
    $50.95
    Subtotal:
  • BOYESEN Single-Stage Reed - Carbon - Husqvarna/Honda/Kawasaki SSC002

    BOYESEN Single-Stage Reed - Carbon - Husqvarna/Honda/Kawasaki SSC002

    BOYESEN

    $50.95
    Reed valves are critical to your snowmobile's intake efficiency—worn or degraded reeds rob you of throttle response and peak power across the RPM band. The Boyesen Super Stock Reeds deliver precision-matched performance with extended durability, making...
    SSC002
    SKU:
    SSC002
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    SET
    MATERIAL:
    CARBON
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    $50.95
    Qty in Cart: 0
    Quantity:
    Price:
    $50.95
    Subtotal:
  • BOYESEN Pro Series Reed - YZ250 '03-'04 PRO-186

    BOYESEN Pro Series Reed - YZ250 '03-'04 PRO-186

    BOYESEN

    $62.95
    If you're running a YZ250 two-stroke, your reed valve is the gatekeeper of performance—and a worn or mediocre reed directly limits throttle response and peak power. The Boyesen Pro Series Reed delivers the quick intake response you need for sharp...
    PRO186
    SKU:
    PRO186
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR250 '03 PRO-182

    BOYESEN Pro Series Reed - CR250 '03 PRO-182

    BOYESEN

    $69.95
    If you're chasing peak acceleration and precise throttle response on your CR250, reed quality directly impacts how quickly your engine responds to input. The Boyesen Pro Series Reed delivers the responsiveness you need through a proven dual-stage design...
    PRO182
    SKU:
    PRO182
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    MATERIAL:
    CARBON FIBER
    MODEL:
    PRO SERIES
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • BOYESEN Pro Series Reed - CR125 '03 PRO-180

    BOYESEN Pro Series Reed - CR125 '03 PRO-180

    BOYESEN

    $62.95
    If you're running a CR125 and want measurable gains in throttle response and acceleration, upgrading to a quality reed valve system is one of the highest-ROI modifications you can make. The Boyesen Pro Series Reed delivers quicker piston speed response...
    PRO180
    SKU:
    PRO180
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REED PETAL
    MODEL:
    PRO SERIES
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    MATERIAL:
    CARBON FIBER
    TYPE:
    DUAL STAGE
    UNITS:
    SET
    $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    $62.95
    Subtotal:
  • BOYESEN Racing Reed - KX125 '01-'02 6100

    BOYESEN Racing Reed - KX125 '01-'02 6100

    BOYESEN

    $39.95
    The stock reed valve is one of the most overlooked performance bottlenecks in two-stroke engines. Boyesen's dual-stage reed design unlocks measurable flow improvements across the entire RPM range, translating to sharper throttle response and more usable...
    6100
    SKU:
    6100
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    PRODUCT NAME:
    REED PETAL
    TYPE:
    DUAL STAGE
    MODEL:
    POWER REED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - Suzuki 610

    BOYESEN Racing Reed - Suzuki 610

    BOYESEN

    $22.95
    The intake tract of your Suzuki 610 is only as efficient as your reed valves allow. Boyesen's dual-stage reed design has been laboratory-validated to deliver superior flow velocity across the entire operating pressure range—meaning faster throttle...
    610
    SKU:
    610
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    PRODUCT NAME:
    REED PETAL
    MATERIAL:
    FIBERGLASS
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • BOYESEN Racing Reed - Yamaha 609

    BOYESEN Racing Reed - Yamaha 609

    BOYESEN

    $39.95
    The Boyesen Racing Reed transforms your Yamaha 609's intake efficiency by optimizing flow velocity across the entire RPM band—from idle through peak acceleration. Factory reeds create restrictive flow patterns that limit your engine's potential; these...
    609
    SKU:
    609
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    UNITS:
    SET
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    PRODUCT NAME:
    REED PETAL
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • BOYESEN Racing Reed - Suzuki/Cage/Kawasaki 608

    BOYESEN Racing Reed - Suzuki/Cage/Kawasaki 608

    BOYESEN

    $39.95
    Stock reeds are limiting your engine's potential across the entire RPM range. Boyesen's dual-stage reed design unlocks greater flow velocity from idle through peak acceleration, delivering measurable performance gains where it counts. If you're serious...
    608
    SKU:
    608
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    UNITS:
    SET
    PRODUCT NAME:
    REED PETAL
    BASE COLOR:
    YELLOW
    MATERIAL:
    FIBERGLASS
    MODEL:
    POWER REED
    TYPE:
    DUAL STAGE
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • EBC Pilot Jet EBC424-21-42

    EBC Pilot Jet EBC424-21-42

    EBC

    $19.50
    Carburetor tuning demands precision, and a mismatched pilot jet will throw off your idle quality and low-end throttle response across the entire RPM range. The EBC Pilot Jet EBC424-21-42 delivers flow-calibrated accuracy in brass construction, ensuring...
    10050126
    SKU:
    10050126
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MATERIAL:
    BRASS
    RIDING STYLE:
    OFF-ROAD
    OVERALL LENGTH METRIC:
    28.00 MM
    RIDING STYLE:
    UTV
    JET SIZE:
    42
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    HEAD DIAMETER:
    5,00 MM (0,20')
    HEAD DIAMETER IMPERIAL:
    0.20'
    HEAD DIAMETER METRIC:
    5.00 MM
    TYPE:
    PILOT
    UNITS:
    4 PACK
    $19.50
    Qty in Cart: 0
    Quantity:
    Price:
    $19.50
    Subtotal:
  • EBC Pilot Jet EBC424-21-45

    EBC Pilot Jet EBC424-21-45

    EBC

    $19.50
    Carburetor tuning demands precision, and stock or worn jets compromise both throttle response and fuel economy. The EBC Pilot Jet EBC424-21-45 delivers flow-calibrated accuracy for pilot circuit optimization, ensuring crisp idle quality and smooth...
    10050127
    SKU:
    10050127
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    JET SIZE:
    45
    PRODUCT NAME:
    JET
    RIDING STYLE:
    STREET
    HEAD DIAMETER:
    5,00 MM (0,20')
    HEAD DIAMETER IMPERIAL:
    0.20'
    OVERALL LENGTH METRIC:
    28.00 MM
    HEAD DIAMETER METRIC:
    5.00 MM
    RIDING STYLE:
    UTV
    TYPE:
    PILOT
    UNITS:
    4 PACK
    $19.50
    Qty in Cart: 0
    Quantity:
    Price:
    $19.50
    Subtotal:
  • EBC VM Series Pilot Jet EBC22/210-35

    EBC VM Series Pilot Jet EBC22/210-35

    EBC

    $13.76
    If your VM-series Mikuni carburetor is running rich or lean, a worn or incorrect pilot jet is often the culprit—and it directly impacts idle quality, throttle response, and fuel economy. The EBC VM Series Pilot Jet delivers precision fuel metering with...
    10050023
    SKU:
    10050023
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    JET SIZE:
    35
    TYPE:
    PILOT
    UNITS:
    4 PACK
    BASE COLOR:
    BRASS
    HEAD DIAMETER METRIC:
    4.80 MM
    OVERALL LENGTH METRIC:
    13.50 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BRASS
    JET TIP DIAMETER METRIC:
    3.00 MM
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $13.76
    Qty in Cart: 0
    Quantity:
    Price:
    $13.76
    Subtotal:
  • EBC VM Series Pilot Jet EBC22/210-37.5

    EBC VM Series Pilot Jet EBC22/210-37.5

    EBC

    $13.76
    A carburetor's fuel delivery precision depends entirely on jet calibration—get it wrong, and you're left with a sluggish, inefficient engine. The EBC VM Series Pilot Jet delivers flow-calibrated accuracy in brass construction, giving you the exact fuel...
    10050024
    SKU:
    10050024
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    TYPE:
    PILOT
    COLOR/FINISH:
    BRASS
    MATERIAL:
    BRASS
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    UNITS:
    4 PACK
    BASE COLOR:
    BRASS
    HEAD DIAMETER METRIC:
    4.80 MM
    JET SIZE:
    37.5
    OVERALL LENGTH METRIC:
    13.50 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    JET TIP DIAMETER METRIC:
    3.00 MM
    RIDING STYLE:
    OFF-ROAD
    $13.76
    Qty in Cart: 0
    Quantity:
    Price:
    $13.76
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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